Sounds like your looking for is what's known as Voronoi polygons.
Take a look at http://www.tetrad.com/VMapper/example2.html, and
replace those Col McBuckets Chicken Fried Blasphemy stands with
fire stations, and you can see that the Voronoi polygons could be
used to select nearast roads to a station.
Vertical Mapper (http://www.northwoodtec.com) makes these easily.
Also check out The Map Tools Company's
(http://members.aol.com/maptools/) TriTools (a good for the
price.)
- Bill Thoen
GISnet, 1401 Walnut St., Suite C, Boulder, CO 80302
tel: 303-786-9961, fax: 303-443-4856
mailto:[EMAIL PROTECTED], http://www.ctmap.com/gisnet
Troy Wiora wrote:
>
> I am looking for some way to create a line of midpoints between three points I
> have. I hand drew a line that looks like it is in-between the points but I
> would like something a bit more exact, if there is a way. Specifically, I am
> drawing three shapes showing which roads are closest to which of three fire
> stations. I can e-mail a jpeg of what I have already done if it would help
> clarify anything.
>
> Thanks
> Troy
> [EMAIL PROTECTED]
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